i think if you take a look you will find that they did use on one test using a 1/4'' tap and then latter redrilled it with a 5/6''.
i think if you take a look you will find that they did use on one test using a 1/4'' tap and then latter redrilled it with a 5/6''.
I wouldn't treat results compiled from tests on northeastern sugar maples as the same as what would happen to central plains boxelders. The trees grow so differently. Anyone that knows boxelders know they grow like weeds and are a bit tough to kill. Even if you caused a bit more wood staining with a reamed hole, they'd grow new sapwood way outward of that by the time you'd need to use that column/area again. I've cut down boxelders that have shown >1" DBH of new growth in several years.
But, I'm assuming and we know what that means
I also have never seen anyone managing a forest for boxelder production either.
42.82N
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I have collars on my drill bits so that I, and those helping me, can't tap more than 1.5" deep so as to do the minimum harm to the trees.
I've had good experience with drill bit collars. There's a little screw that fixes them in place on the drill bits. I used to use 5/16 tubing on my bits to control the depth, but the tubing kept creeping up the bit. They are mostly used by people using a drill press who want to drill holes that don't go all the way through, but only go down to a specific depth.
I'm not using them with augur bits that have a screw on the tip to pull the bit down into the hole, I use them with standard drill bits usually used for metal. I can keep turning the bit after the collar hits the trunk without any pull into the hole. In fact, any additional turning helps clean the sawdust out of the hole. Here's one of my drills with a collar on its 5/16 bit:
680 5/16 taps on gravity
red and sugar maples
2 Homemade ROs
Stovetop evaporator
Filter press by Daryl
Star San Tube Pump
Drying rack for hydrometer
Loves tapping in snow
HowardR, interesting, but Proctor Research center says 1.75-2" is th best, and that's in past the bark. If you tap a spot with 1/4" thick bark, you're tapping 1.25" deep, if the bark is 1/2" thick you only get 1" into the tree.
When you use a drill bit collar I suggest you leave the collar back 2.25", if you tap older trees and 2.125" if you tap mostly 10-12" trees.
Dave Klish, I recently bought a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.
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